pdo insert assoc array

pdo_quick_assoc_array_insert.php

<?php
    // @link http://stackoverflow.com/questions/13507496/pdo-php-insert-into-db-from-an-associative-array
    $keys = array_keys($a);
    $sql = "INSERT INTO user (".implode(", ",$keys).") \n";
    $sql .= "VALUES ( :".implode(", :",$keys).")";        
    $q = $this->dbConnection->prepare($sql);
    return $q->execute($a);